Wikipedia:Edit filter/Requested

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Requested edit filters

This page can be used to request edit filters, or changes to existing filters. Edit filters are primarily used to address common patterns of harmful editing.

Private filters should not be discussed in detail. If you wish to discuss creating an LTA filter, or changing an existing one, please instead email details to

Otherwise, please add a new section at the bottom using the following format:

== Brief description of filter ==
*'''Task''': What is the filter supposed to do? To what pages and editors does it apply?
*'''Reason''': Why is the filter needed?
*'''Diffs''': Diffs of sample edits/cases. If the diffs are revdelled, consider emailing their contents to the mailing list.

Please note the following:

  • Edit filters are used primarily to prevent abuse. Contributors are not expected to have read all 200+ policies, guidelines and style pages before editing. Trivial formatting mistakes and edits that at first glance look fine but go against some obscure style guideline or arbitration ruling are not suitable candidates for an edit filter.
  • Filters are applied to all edits. Problematic changes that apply to a single page are likely not suitable for an edit filter. Page protection may be more appropriate in such cases.
  • Non-essential tasks or those that require access to complex criteria, especially information that the filter does not have access to, may be more appropriate for a bot task or external software.
  • To prevent the creation of pages with certain names, the title blacklist is usually a better way to handle the problem - see MediaWiki talk:Titleblacklist for details.
  • To prevent the addition of problematic external links, please make your request at the spam blacklist.
  • To prevent the registration of accounts with certain names, please make your request at the global title blacklist.
  • To prevent the registration of accounts with certain email addresses, please make your request at the email blacklist.

Blank RfPP requests[edit]

  • Task: Warn editors when they submit blank RfPP requests
  • Reason: Ever since the new system was implemented, there have been an uptick of default requests, particularly on the /Decrease section
  • Diffs: * [1]

lomrjyo(talkcontrib) 02:01, 31 July 2021 (UTC)

This may or may not have something to do with WT:Twinkle#RPP bug. Certes (talk) 08:47, 31 July 2021 (UTC)
I think not, at least directly. Most if not all are from new users who won't be using Twinkle. If you go to RFPP and click the button, you're presented with the pre-fill text, including Example Article Name, which is what many of these requests are (eg Special:PermaLink/1036169926). For the /Edit subpage, you get Name of page you are requesting an edit to, as seen in Special:PermaLink/1035915138. I think we've already tried to tweak the messaging; I'm in favour of a filter for this, along the lines of 987 (hist · log). We just need a suitable error message. (courtesy ping) -- zzuuzz (talk) 09:08, 31 July 2021 (UTC)
We can probably re-use MediaWiki:Abusefilter-warning-empty-edit-request for the /Edit requests, but for the /Decrease section we're going to need something different. I haven't noticed a problem with /Increase yet - probably because people are not going to be automatically guided there. -- zzuuzz (talk) 10:01, 31 July 2021 (UTC)
(duplicate post from WT:RPP) I have quite boldly implemented a new JavaScript form for the "Increase" side. If it looks OK, could we use it for the Decrease and Edit workflows, too? Enterprisey (talk!) 09:44, 18 August 2021 (UTC)
@Enterprisey: Might as well improve the "Submit an edit request" form too (here in incognito, for example). The amount of times blank or malformed requests are submitted... ProcrastinatingReader (talk) 14:30, 18 August 2021 (UTC)
Sounds like a plan. It looks to me like people are successfully using the new form (example), so later today I'll roll it out to all three workflows (Decrease, Edit, and the "submit edit request" button). Enterprisey (talk!) 00:47, 19 August 2021 (UTC)
@Enterprisey: BTW this happens if you submit an empty form. ProcrastinatingReader (talk) 00:54, 19 August 2021 (UTC)

Persistent LTA[edit]

I'm being deliberately vague here, but (a) how easy would it be to create a filter which would block a certain IP range from editing any article which started with a particular string? (i.e. block 999.999.0.0/16 from blocking any article that started with the digit 1?) and (b) could this be done for a wider reach than a /16? Black Kite (talk) 22:22, 4 August 2021 (UTC)

@Black Kite: (a) Pretty easy; (b) yes, can be done for any CIDR. ProcrastinatingReader (talk) 19:19, 6 August 2021 (UTC)
ProcrastinatingReader Sorry, I missed your reply - thanks. The issue has gone away somewhat in the last couple of weeks, but good to bear in mind. Black Kite (talk) 20:22, 18 August 2021 (UTC)

Changes of pronoun[edit]

  • Task: Flag changes of pronoun on BLPs
  • Reason: I was surprised that changes of pronoun on BLPs doesn't even show up in my watchlist highlighted as likely problematic
  • Diffs: Special:Diff/1040974518/1041027351

—valereee (talk) 12:50, 28 August 2021 (UTC)

Single-character file names[edit]

A single-character file name would likely either be too generic, or just be absurdly annoying (e.g. "⌬.svg" for a diagram of a benzene molecule). Create protecting every title seems like it'd be really difficult, so I'd think it'd be better to just use an edit filter. InvalidOStalk 17:26, 14 September 2021 (UTC)

@InvalidOS: Do you have any evidence of this being a problem? Edit filters have finite resources so we tend not to use them speculatively. Additionally, since this would impact good faith edits, I think it warrants consensus to implement, per WP:EF. Has this been discussed anywhere? Sam Walton (talk) 17:28, 14 September 2021 (UTC)
@Samwalton9: No to both. So...yeah. Probably best to let it be dealt with on a case-by-case basis. If a filename like that came up, we can deal with it then. InvalidOStalk 23:37, 14 September 2021 (UTC)